Wow, I had no idea that running the engine with colder plugs and t-stat
would have much of an impact. I guess my next question is what are the 4.7L
guys running in their engines? I have a stock 2001 4.7L 4X4 with an auto.
I have also seen a lot of guys mention the Autolite plugs, are they
considered the best?
Thanks for your help,
Mike
""Shawn Bowen"" <Shawn@bowen.com> wrote in message
news:007601c0daa8$2e48d5a0$6401a8c0@neteffect.neteffectcorp.com...
> The Stock motor comes with a 195 or so radiator T-Stat and the stock plugs
> are meant to run at a specific engine temp. By putting on a cooler T-Stat
> (like a 180 degree $5-$10 part) would make your engine run cooler, better
> performance. You will immediately notice that instead of your temp being
> near the middle of the gauge that it will be about 2516030267125wer. The stock
> plugs for my truck (a 5.2L 318) are Autolite 5224's, most on this board
run
> Autolite 3923's in this engine from what I've read. That is NOT a stock
> part number though and if you have a 4.7L I dunno what the proper upgraded
> plugs should be off the top of my head. Basically the non-standard plugs
> are more optimized for the cooler running engine. Since these are not the
> stock plug sized either they do not go quite as deep into the cylinder.
> When you look at Autolite plugs at your parts store the first number is
the
> style plug 39 in my case and the second number is the temp range, 24 for
> stock, 23 for one temp range cooler than stock. I was told today that for
> my upcoming SuperCharger install I should consider 3922's, yet another
range
> cooler.
>
> By your engine running cooler it will perform better, last longer, and
give
> over all better performance. The cooler spark plug ranges help those of
us
> with pinging problems quite a bit. I installed the 3923's tonight gapped
at
> 0.050 and have no pinging at ALL. I will also say it sure seems to have a
> little more pep (no scientific data but I ran the sucker good and hard and
> it felt considerably stronger all the way from idle to top end).
>
> If you have a 4.7L you need to find out the plugs folks are using for it
as
> I'm not sure. These seem to work great in mine and I am glad I followed
> everyones advice on getting them.
>
> If anyone has any additions or corrections by all means post them, I learn
> something new everyday!
>
> Shawn Bowen
> 98 5.2L 318 4x4 CC
>
>
> -----Original Message-----
> From: owner-dakota-truck@BUFFNET.NET
> [mailto:owner-dakota-truck@BUFFNET.NET]On Behalf Of Mike
> Sent: Friday, May 11, 2001 10:06 PM
> To: dakota-truck-moderator@bent.twistedbits.net
> Subject: DML: Re: RE: My first Dak + couple questions
>
>
> ""Shawn Bowen"" <Shawn@bowen.com> wrote in message
> news:006601c0da59$3a8ede80$6401a8c0@neteffect.neteffectcorp.com...
> > I personally would put a cooler 180 degree T-Stat on it and a set of
> cooler
> > plugs, a K&N intake system, the exhaust, and the Line-X bed liner and
> enjoy
> > your new ride.
>
> Just out of curiosity, what do colder plugs and thermostat do?
>
> Thanks,
> Mike
>
>
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